Orthodontic bracket

摘要

Provided is an orthodontic bracket that is capable of a more effective motion on the tooth surface. The orthodontic bracket includes a substrate surface that is bonded to the tooth surface and an arch wire retaining portion that is configured to retain an arch wire with the substrate surface as a bottom surface, the orthodontic bracket being connected by the arch wire and continuously applying a stress to individual teeth to thereby straighten a row of teeth, wherein the orthodontic bracket is in an approximately cambered cross-sectional shape that is orthogonal to the direction in which the arch wire is stretched with the substrate surface bonded to the tooth surface as the bottom surface, and is provided with a plurality of arch wire through holes respectively for inserting the arch wires into the holes and connecting adjacent orthodontic brackets by the arch wires.

主权项

1. An orthodontic bracket comprising: a substrate surface configured to be bonded to a tooth surface; and, an arch wire retaining portion that is configured to retain an arch wire,
the orthodontic bracket being configured to connect to the arch wire and to continuously apply a stress to individual teeth to thereby straighten a row of teeth, wherein a cross section of the bracket that is orthogonal to a direction in which the arch wire is stretched, with the substrate surface bonded to the tooth surface as a bottom edge, is an approximately cambered shape, in which the bracket cross section is shaped to have a circumscribed first virtual semicircle, the first virtual semicircle having a radius R1 and a virtual center positioned at a center of the bottom edge of the cross section, the first virtual semicircle contacting at least four contact points on the cross section of the bracket, wherein the orthodontic bracket includes flat plates, the flat plates being arranged such that the cross section of the bracket comprises straight lines defined by an edge of one of the flat plates, the straight lines connecting adjacent contact points of the bracket cross section, wherein the orthodontic bracket is provided with a plurality of arch wire through holes respectively for inserting the arch wire into the arch wire through holes and connecting adjacent orthodontic brackets by the arch wire, wherein the orthodontic bracket is an integrated object formed by inputting a bracket formation material into a mold and attaching a jig for forming the through holes, thereby forming the bracket in the desired shape, wherein the substrate surface comprises a curved surface such that the bottom edge of the cross section of the bracket defines a second virtual semicircle having a radius R2 that is different than the radius R1 of the first virtual semicircle, and wherein the curved surface comprises at least one adhesive agent filling dovetail groove arranged such that a width of an opening of the dovetail groove is smaller than a width of an interior of the dovetail groove.